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Dough Boy Racer, The nuts got welded inside the square tube and then the square tube got welded on the bottom side of the top flange. I had to do it this way because if I just were to weld the nut to the underside of the beam the concrete would block the hole.

The concrete is going to be poured tomorrow on the onside of the beams.

Dough Boy Racer, The nuts got welded inside the square tube and then the square tube got welded on the bottom side of the top flange. I had to do it this way because if I just were to weld the nut to the underside of the beam the concrete would block the hole.

The concrete is going to be poured tomorrow on the onside of the beams.

I understand that...I was giving you options for your plugs for that...and options for other things to cast in the floor.

A 40'x80' garage addition is a fair sized structure. I am sure you had a structural engineer on board for this. What is his opinion on the floor loads? If the structure was done without plans you can still hire a structural engineer to calc out the loads and thickness of the slab for under $500. There are many factors here which need to be addressed and there is no reason to "guess."

I got all the concrete poured, The inside slab is at least 6" plus at the walls and a little thicker where the trucks pull in 8" with the heavier wire mesh.
I have coffee in the morning with the old guys at Mc dees and one of the old guys who owned the cement plant and now his kids run it.
He said they were all lauphing at the concrete plant because I made chairs to hold my wire up.
I also poured a 30' x 40' appron in front of the doors, That is all 8".

Now I have to wait for things to cure before I bring the hilo in to set the runway beams for the crane.